Fixes#1369.
Prior to this commit, the docs on fidelity bonds stated that expired
fidelity bond utxos (which are spendable), can be spent in coinjoins as
a Taker, but that is not correct - they can only be spent in a
non-coinjoin transaction (direct send).
Add a new helper module to calculate fidelity bonds values and stats, and a script to use it.
The goal is to give as much information as possible to the user before
committing to a fidelity bond.
Closes#1247.
This consists of an inclusion of the bond value exponent into the config
that the user can alter, and a change of that from 2 to default 1.3.
Also updates the fidelity bond documentation to account for those
changes, including the units used in ob-watcher, but not the calculation
of fidelity bond attack resistance (which remains a TODO).
At least two people have been burned by creating two transactions
sending bitcoins to two timelocked addresses, and then finding that
yield-generator announces only one of them.
This commit expands the section talking about how only one UTXO will
be used. It also edits the text to refer to yield-generator's fidelity
bonds only in the singular, as previously they were referred to in
the plural (i.e. "fidelity bonds"), which possibly added to user's
confusion.
Kristaps Kaupe
Luke
Adam Gibson
PulpCattel
chris-belcher